Subsurface drainage and raised-bed planting reduce excess water stress and increase yield in common buckwheat (Fagopyrum esculentum Moench)
Subsurface drainage and raised-bed planting reduce excess water stress and increase yield in common buckwheat (Fagopyrum esculentum Moench)
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地下排水和高床种植可减少过度水分胁迫并提高普通荞麦 (Fagopyrum esculentum Moench) 的产量
DOI：
10.1016/j.fcr.2023.108935
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发表时间：
2023
影响因子：
5.8
通讯作者：
Koyama Takuya
中科院分区：
文献类型：
--
作者：
Takeshima Ryoma;Murakami Shun;Fujiwara Yosuke;Nakano Keiko;Fuchiyama Ritsuko;Hara Takahiro;Shima Takeo;Koyama Takuya
在亚洲，由于农民寻求在以水稻为基础的农业系统中稳定收入，由稻田转换的田地中的大豆、小麦、大麦和荞麦等高地作物的种植面积正在增加。然而，过度的水和水涝胁迫在这些转换稻田减少了高地作物，特别是荞麦的产量。为了探索缓解荞麦过度水分或涝渍胁迫的方法，我们（1）分析了2015年至2021年的降雨量和产量数据，以确定高降雨日数对有或无地下排水的田间产量的影响，（2）确定了在有或无地下排水的田间种植的荞麦作物的产量和产量构成的影响，（3）进行了为期3年的田间试验，以确定在无地下排水的田间条件下，垄作种植对土壤水分状况和荞麦生长及产量的影响。产量与日降水量> 30 mm的天数呈极显著负相关，但与地下排水的相关性不显著。78块没有地下排水的地块的平均产量（SD）为7.49（9.57）g m− 2，21块有地下排水的地块的平均产量为40.1（25.5）g m−2。在没有地下排水的领域，提高床种植导致产量显着增加相比，平床种植，但有地下排水领域没有这样的差异。在没有地下排水的3年田间试验中的2年（不包括降雨量特别高的1年），由于营养生长和生殖生长的改善，提高床种植的产量是平床种植的两倍多。此外，垄作还改善了排水和过量水指标，降低了土壤平均含水量，并与产量呈显著相关。我们的研究结果表明：（1）地下排水将有助于提高荞麦产量的条件下，大雨，和（2）在没有地下排水的领域，提高床种植增加荞麦产量，通过改善土壤水分条件和营养和生殖生长。
The cultivation area of upland crops such as soybeans, wheat, barley, and buckwheat in fields converted from paddy fields are increasing as farmers seek to stabilize their income in rice-based farming systems in Asia. However, excess water and waterlogging stress in these converted paddy fields reduces the yields of upland crops, especially buckwheat. To explore ways to alleviate excess water or waterlogging stress on buckwheat, we (1) analyzed rainfall and yield data from 2015 to 2021 to determine the effect of high-rainfall days on yield in fields with or without subsurface drainage, (2) determined the effect of raised-bed planting on yield and yield components of buckwheat plants grown in fields with or without subsurface drainage, and (3) conducted a 3-year field trial to determine the effect of raised-bed planting on soil water conditions and buckwheat growth and yield in fields without subsurface drainage. Yield was significantly negatively correlated with number of days with daily precipitation of > 30 mm in fields without subsurface drainage, but was not correlated in fields with subsurface drainage. The average yield (SD) of 78 plots without subsurface drainage was 7.49 (9.57) g m−2and that of 21 plots with subsurface drainage was 40.1 (25.5) g m−2. In fields without subsurface drainage, raised-bed planting resulted in a dramatic increase in yield compared to flat-bed planting, but there was no such difference in fields with subsurface drainage. In 2 years of the 3-year field trial in fields without subsurface drainage (excluding 1 year with exceptionally high rainfall), the yields of raised-bed planting were more than double those of flat-bed planting as a result of improved vegetative and reproductive growth. Further, raised-bed planting improved the indexes of drainage and excess water and decreased the average soil water content, which were significantly correlated with yield. Our results indicate that (1) subsurface drainage would contribute to improving buckwheat yields under conditions of heavy rainfall, and (2) in fields without subsurface drainage, raised-bed planting increases buckwheat yields through improving soil water conditions and both vegetative and reproductive growth.
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影响因子：
2.5
作者：
Koyama, Takuya;Suenaga, Momo;Takeshima, Ryoma
通讯作者：
Takeshima, Ryoma
影响因子：
--
作者：
Bakker, DM;Hamilton, GJ;Spann, C
通讯作者：
Spann, C
影响因子：
5.8
作者：
Bakker, D. M.;Hamilton, G. J.;Spann, C.
通讯作者：
Spann, C.
稻田改作旱田行间条耕提高大豆生长和产量
影响因子：
0.4
作者：
S. Yoshinaga
通讯作者：
S. Yoshinaga
田间种植的荞麦 (Fagopyrum esculentum Moench) 的根长和分布
DOI：
10.1080/00380768.2002.10409245
发表时间：
2002
期刊：
影响因子：
--
作者：
T. Murakami;S. Murayama;M. Uchitsu;Seishi Yoshida
通讯作者：
Seishi Yoshida